Apparatus for manufacturing glass articles.



No. 829,530. I PATENIED AUG. 23 190E.

c. KUHLEWIND. A APPARATUS FOR MANUFACTURING GLASS ARTICLES.

APPLIQLTIOK TILED SEPT. 19. 1905.

- 4 SHEETS-SHEET 1.

a? I as PATENTED AUG. 28, 1906.

* v G. KUHLEWIND. APPARATUS FOR MANUFACTURING GLASS ARTICLES.

APPLICATION FILED BEYT. 19. 1 905.

(SHEETS-SHEET 2.

PATENTED AUG. 28, 1906.

0. 'KUH'LEWIND. APPARATUS FOR MANUFACTURING GLASS ARTICLES;

APPLIUATIOH FILED SEPT. 19. 1995.

4 sinus-anim- 4.

. To all whor'nit may concern.-

State of Pennsylvania, have invente.

shown in due to the equalizing-pressure mechanlsm UNITED sT ArEs CORNELIUS KUHLEVVIND, or PITTSBURG, PENNSYLVANIA,'AssmrNoR or ATEN OFFICE.

ONE-HALF TO PAUL \VUESTHOFF, OF Pl'lTSBURG, PENNSYLVANIA.

APPARATUS FOR MANUFACTURING 'GLASS ARTICLES- I Specification of Letters iatent.

Patented Aug. 28, 1906.

Applicatiomfiled Saptembm ,19, 1905. Serial No 279.097-

Be it known that I, CoRNELnis KUHLE- WIND, a citizen of the United States, residing at Pittsburg, in the county of Alleghen and certain new and useful Improvements in Apparatus for Manufacturing Glass Articles, of which the following is a specification, referencebeing had therein to the accompanying drawings, fiorming'a part thereof, in which Figure 1 is a view in front elevation of my improved -glasspressing apparatus. Fig. 2 is a similar view in side elevation. Fig. 3 is a vertical sectional view showing the mold raised-'anqhthe plunger inserted thereinto in sectional view showing the same parts in engagement, butillustrating the mold and plunger asboth raised above the position Fig. 3 and'in' operative engagement for the plunger. Figs. 5 and 6 are detail views showing the equalizing-pressure mechanism for the plunger in different positions. Fig. 7 is a plan view of the mold-table and molds indicated by the horizontal section line VII VII of Fig. 2. Fig. 8 is a partial view in rear elevation similar to Fig. 1, but from the opposite side, showing the valvecontrolling apparatus.

My inventionrefers to ilnprovements in apparatus for manufacturing glass articles of the class known as fpressed ware.

It constitutesa pressing mechanism wherein a series of molds are brought into register with a reciprocating plunger arranged to cooperate with the mold to form the article of ware, and the invention particularly relates to the means for raising and lowering the mold and plunger, respectively The object of the invention is to provide a construction wherein the various movements are secured in such a manner'that a proper pressure will be ,maintained upon the glass in the mold at all times and at varying positions' of the mold and plunger, with means for preventing excessive pressure and for allowing the plunger-to -recede against its actuating pressure due to lifting movement of the' mold, also to secure said operationthrough the medium of a single prime mover and its connected parts with the'various other attendant necessary movements, as the rotation of the table, &c., as well as various other features of improvement and construction through the mechanism hers lnafter described.

Referring now to the drawings, 2 represents the main frame of the apparatus mounted upon the. usual supporting-wheels 3, provided with an upper bass-table 4, up

wardly-ext'ending s'upportingposts 5, a centrally-arrangedhollow mast 6, and an upper connecting frame 7, all of which parts constitute the main frame elements of the apparatus. I T

8 is the mold-carrying table, rotatabl'y mountedaround the central mast 6, pref- 1 erably npon a series of rolling bearings 9 of any suitable construction and provided with a radially-arranged series of mold-shells 10. The table 8 is intermittently partially rotated after each operation to, bring each mold successively underneath the plunger at the proper time by means of an arm 11, provided with a springpres'sed pawl '12,

adapted to engage ratchet abutments 13- extending downwardly from the table 8, the

arm 11 being actuated through a connectingpost 13 from arm 14, which is intermittently actuated by lever 15 from the piston-rod 16 of a piston mounted in cylinder 17, located underneath the base-table 4. The post connection 13 extends upwardly through an annular slot 18 in the base-table '4, and piston-rod 16 is provided with-an actuatin'g-spring 19, which reacts against the piston-rod, so that when pressure. is admitted to cylinder 17 it will operate to swing arm 11 over to engage the next adjacent ratchet-abutment 13. Upon releasing the [pressure from the piston of cylinder. 17

spring 19 will by its expansion effect the desired partial rotation of the table. The special advantage of this construction in the present apparatus is that the cylinder 17 is.

thereby cap able of operation through the same. valve mechanism which operates the piston of the main actuating-cylinder, the rotation of the table thus being effected at the proper period after the finishing of the pressing function'and at the time that the fluid is exhausted from the main cylinder.

The apparatus is designed for the purpose of erforming theo erations of raising the mol d and lowering t e plunger thereinto by mechanism operated from a single cylinder. For this purpose I employ a longltudlnal piston rod or shaft 20, provlded with piston 21,

\ within the mold-shell 10, provided with a iifting-base 24 upon which it is set, said base bein adapted to be brought centrally over a mo] -raismg plunger 25, slidingly mounted in a suitable bearing-c linder 26 at the front of the base-table 4 and just below the lower face of the rotating table for clearance. The mold-base 24 is made hollow, as shown, to receive the lower end of the ware-discharging post 27, and for the purpose of raising said t and the finished article after the pressmg operation I provide an inclined camtrack 28, arranged to engage the mold-base 24 through slot 29 in its lower portion as it is carried around'by the rotating table 8, thereby raising post 27 and. ejecting the article at the next stationary position of the mold, in

' which position it may be readily removed by an attendant.

The mold-post .25 and its supported mold 23 are raised upwardly to meet the pressingplunger and positively lowered away therefrom b operation of piston-rod 20, through liftingevers 30, pivoted'at their outer ends to the lower end of links 31 and at their inner ends at 32 to pins of a ring 33, secured upon piston-rod 20, preferably adjustably, in any suitable-manner, as b a set-screw. For the purpose of utilizing t e leverage of arms 30 to increase the travel of post 25 and its suprted mold said post is connected through li ks 34 and levers 35 with lever-arms 30 by means of a pivotal joint 36 intermediate between the ends of lever-arms 35, pivoted at their inner ends at 37 upon a stationary supporting pin or rod, preferably with a clearance slot, so as to insure free operation. It

. will thus be seen that upon upward motion of piston-rod 20 corresponding upward motion will be imparted to post 25 and mold 23 and that the travel of these parts may be regulated or varied through the lever mechamsm just. described, 'so as to secure the de sired amount of travel.

For the purpose of. lowering the plunger until the glass has been pressed to the desired form and no longer, so as to avoid crackling, I have provided means for lowering the plunger, actuated'from the same piston-rod 20, and ha incorporated between said piston-rod and the plunger pressure equalizing or compensating mechanism by which positive downward motion may be imparted and pressure continuously exerted while still allowing for the automatic arresting of the downward travel of the plunger, and also of its positive upward travel, while such downward pressure, sufficient to main.- tai'h the plunger firmly in the mold, is still being continued. For this purpose the plunger 38 is connected by suitable gripping mechanism to a traveling cross-head 39, which in turn is actuated through the usual threaded rod/10, extending u Wardly through the top plate 7 and provide at. its upper end with an operating-frame 41. This frame is designedtoimpart raising and lowering motion to rod 40 from piston-rod 20 through the operation of levers 42, pivoted at 43 in the upper end of a supporting-bracket 44, mounted upon the upper plate 7, lever-arms 42 being connected by links 45 to pins 46 of a cross head or ring 47, secured, preferably adjustably, as by a set-screw, upon the upper end of piston-rod 20. Arms 42 extend outwardl beyond their pivotal connection with li s 45 and are connected at48 with rods 49, attached at their lower ends to counterweight 50, slidingly mounted around mast 6. By this arrangement positive downward motlon is imparted to iston 20 upon release of pressure underneath piston 21- The front end of lever 42 is connected at 51' with links 52, whichare connected at .53 with the outer ends of pin 54, carlging a roller-terminal 55, extending across t e operatin -frame 41 and adapted to travel upwardiv and do'wnwardly through arc-slots 56. These slots are formed in the sides 57 of frame 41, said sides being separated by a vertical slot in which is mounted the pressure-lever 58, pivoted at 59 in the -upper end and between the sides of frame 41 and provided. with abackwardlyextending lever extension 60. lever 58 extends downwardly and conforms generally in its normal position to the arc of slots 56, described from the center of pivotal bearing 43 of lever 42, and it will be seen that' if pressure-lever 58 were removed that lever 42 in its operation would merely result in throwing roller-terminal upwardly and downwardly through slot 56 Without imparting any motion whatever to frame 41 or to plunger 38'.

For the purpose of utilizing the operation The pressureof lever 42 to impart motion to these parts through the resistance of a flexible compen- V satingmechanism pressure-lever 58 is inserted Y62 and bear upwardly against a pressureplate 63, connected to lever 60, the tension of spring 61 being reglulated by threaded rod 64, passing downwar ythrougha bracket ex- 829,580 V i I 8,.

tension 65-of frame 41, so that the pressure commencement of' the operation.

of said springs may be delicately regulated and the entire mechanism will rise and fall with frame 4'1.

The inner face of lever 58 is provided with a series of shoulders or serrations 66, having under sloping faces, the intervening depression 67 being adapted 'to receive-the periphery of roller-terminal 55, and it will thus be seen that as lever- 58 presses inwardlv against said roller and as roller is lowere through the lever mechanism described it will engage one of said shoulders or projections 66 at the Due to the spring-pressure maintaining these parts in engagement, the roller-terminal will carry the entire frame 41 downwardly until resistance of said spring is overcome b the greater resistance of the mold, rendere positive at the end of the pressing operation whenthe molten glass has been finally.

pressed to finished form. -Upon the plun er arriving at such position and theusual ollowing plate a. (mounted by means of the customary sustaining-rods, attendant pressuresprings, adjusting mechanism, &c., in the usual wa being also lowered upon the top of the mol continued raisin foperation of piston-rod 20 will effect furt er raising of the mold 23 and will carry upwardwith it the mold-plunger 38. Such contrary pressure acting upwardly against frame 41 will cause it to alsorise, whereupon-the roller 55 will pressthe lever 58 outwardly and will ride past projections 66 until it has arrived at the full limit. of-its travel, lever 58 in the meantime, however, continuing to exert its inward pressure and to engage roller 55 at all times, thus'insuring the continued pressure up to the desired limit of "the plun er toward the mold, and vice-versa. It wiIl be observed that whatever osition the terminal-roller 55 may-assume the pressure against it of the lever 58 will be maintained about the same, inasmuch as the length of the spring is not continuously changed, but will retain' ap proximately the same normal length at which past each shoulder 66.

,it has been set, the only variation being due to the slight inward and outward movement of lever 58 as the roller 55 rides successively Upon releasing the pressure from cylinder 22 the operation of the parts will be im'ihediately reversed, roller 55 traveling backwardly to its initial position past the sloping-under faces of shoulders 66, whereupon the machine will be ready for another operation.

In Fig. 7 I have illustrated the mechanism for controlling the pressure to cylinders 17 and 22, res ectively, comprisin a valve 68 located in the main feed-line an adapted to control the sup ly branches 69 and 70, respectively, lea in' to said cylinders, said valve 68 being un er the control of an operating-lever 71 within convenient reach of the attendent. A lever 72 is connected'wit-h a s ring-controlled locking-bolt '73, whereby t erotating table 8' is positively locked at the termination of each partial revolution, bolt 7 3 springing upwardly into a socket 74 automatically, due to the release of unlocking lever 72 by the operator. I

The operation of the invention will be readily understood from the foregoing descri tion. All of the pressing functions'are per ormed through the 'movement of a single 5 piston, while the provision for exerting onl so much pressure as is re uired at all times is an important and valuab e feature of the invention' and will be found to contribute largely to the successful economical operation of this class of machinery.

Having described my invention, what I claim is 1. In apparatus for manufacturing glass articles, the combination of ,a verticallymovable mold and a vertically-movable plunger, of unitary means for actuating the mold and plungenand frictional slippage mechanism adapted to permit stoppage of the plunger and to malntain pressure thereon, substantially as set forth.

2. In' apparatus for manufacturing glass articles, the combination of a verticallymovable .mold .and a vertically movable plunger, a single longitudinal rod arranged by its motion in one direction to cause the mold and plunger to approach each other, and by motion in the opposite direction to separate from each other, and means for actuating said shaft, substantially as set forth.

3. In a paratus for manufacturing glass articles, te combination of a verticallymovable mold an a vertically-movable plunger, a single longitudinal rod arranged by its motion in one direction to cause the ioo separate from each other, and means for actuating said shaft, with mechanism interposed between the plun er-actuating means and the plunger Where y ressure on the plunger may be continued w en the travel of the plunger is arrested, substantially as set forth. I

4. A glass-press rovided with a verticallymovable frame, a p ungcr connected with said frame, mechanism adapted to impart movement to the frame, and interposed coupling devices in frictional en agement and capable of slip a e, substantiaIly as set forth.

5. E g ass glassrovided. with a verticallymovable frame, a p unger connected with said frame, and positively-actuated means adapted to impart movement to the frame through interposed cou ling devices in frictional en gagement ca a le of maintaining the parts in operative re ationv to each other against a predetermined resistance but to allow of dissaid resistance is exceeded, substantially as I lower the plunger res ectively, and means set forth. incorporated with t e plunger-actuated 6. Aglass-press provided withaveflicallymechanism ada ted to maintain ressure movable frame; a plunger connected with thereon but to'a low of sto pa e of t e plun- 5 said frame, positively-actuated mechanism ger upon engagement wit t e mold, subadapted to move with said frame-or inde stantially as set forth. Y 5 pendent thereof, and spring-controlled means 11. In apparatus for manufacturing glass adapted to make frictional driving engagearticles, the combination of a verticallyment between the frame and said mechanism movable mold, a vertically-movable plunger,

lo and to allow of slippage, substantially as set a piston-rod and cylinder with interposed Y forth. mechanismarranged to raise the mold and 7. A lass-press provided withaverticallylower the plunger respectively, and means movab e frame, a lunger connected with incorporated with the plunger-actuating said frame, positive y-actuated lever mechmechanism ada ted to maintain pressure 1 5 anism provided with a roller-terminal, and a thereon but to a ow of stoppage or independspring-actuated pressure-lever mounted on cut upward travel of the plunger upon ent efiame and arranged to bear against said gagement with the mold during lowering roller, substantially as set forth. travel of the plungeractuating mechanism,

' 8. A lass-press provided with a verticallysubstantially as 'set forth.

2o movab e plunger-carrier-and plunger, posi- 12. In apparatus for manufacturing glass tively-actuated lever mechanism provlded articles, the A combination .of a verticallywith a terminal device in operative erigagemovable mold, a verticallv-movable plunger, ment with said carrier, and a spring-actuated a supporting framework therefor, a verelement connected with the carrier. and tically-arranged longitudinal actuating-rod,

z 5 adapted to bear against said terminal device, compound lever mechanism connected with substantially as set forth. said rod adapted to raise and lower the mold,

9. A. lass-press provided with a verticallycounterweig ted lever mechanism'connectecl movab e frame, a plunger connected with with the rod and adapted to raise and lower.

. said frame, positive y-actuated lever mech-' the lunger, interposed frictional connecting 3o. anism provided with a bearing-terminal, and mec anism between said lever mechanism a spring-actuated pressure-lever mounted on and the plunger, and means for actuating the frame provided with a corrugated face. said rod, substantially as set forth. adapted to bear against said terminal, sub- In testimony whereof I afiix my signature stantialllly as set fOltlfl. l w in presence of two witnesses.

5 10. a aratus or man acturin ass articles, tli combination of a veriiic illy- CORNELIUS KUHLEWIND' movable mold, a vertically-movable plunger, Witnesses:

a piston-rod and cylinder with inter osed CHAS. S. LEPLEY, mechanism arranged to raise the mol and O. M. CLARKE.

It is hereby certified that in Letters Patent No. 829,530,' granted August 28, 1906, upon the: application" of Cornelius Kuhlewind, of Pittsburg, Pennsylvania, for an improvement in Apparatus for Manufacturing Glass Articles, errors appear requirshould read plunger connected, and same page, line 122, the words A glass glass-provided should read A ghss-presa proirided; and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Ol iice. a v

Signed and sealed this 16th day of October, A. 1)., 1906.

. [SEALJ ing correction, as follows: On page 3, line- 117, the words plunger eonuec F. I. ALLEN, C 'ommiaaiqner of Patents.

' said resistance is exceeded, substantially as I lower the plunger res ectively, and means set forth. incorporated with t e plunger-actuated 6. Aglass-press provided withaveflicallymechanism ada ted to maintain ressure movable frame; a plunger connected with thereon but to'a low of sto pa e of t e plun- 5 said frame, positively-actuated mechanism ger upon engagement wit t e mold, subadapted to move with said frame-or inde stantially as set forth. Y 5 pendent thereof, and spring-controlled means 11. In apparatus for manufacturing glass adapted to make frictional driving engagearticles, the combination of a verticallyment between the frame and said mechanism movable mold, a vertically-movable plunger,

lo and to allow of slippage, substantially as set a piston-rod and cylinder with interposed Y forth. mechanismarranged to raise the mold and 7. A lass-press provided withaverticallylower the plunger respectively, and means movab e frame, a lunger connected with incorporated with the plunger-actuating said frame, positive y-actuated lever mechmechanism ada ted to maintain pressure 1 5 anism provided with a roller-terminal, and a thereon but to a ow of stoppage or independspring-actuated pressure-lever mounted on cut upward travel of the plunger upon ent efiame and arranged to bear against said gagement with the mold during lowering roller, substantially as set forth. travel of the plungeractuating mechanism,

' 8. A lass-press provided with a verticallysubstantially as 'set forth.

2o movab e plunger-carrier-and plunger, posi- 12. In apparatus for manufacturing glass tively-actuated lever mechanism provlded articles, the A combination .of a verticallywith a terminal device in operative erigagemovable mold, a verticallv-movable plunger, ment with said carrier, and a spring-actuated a supporting framework therefor, a verelement connected with the carrier. and tically-arranged longitudinal actuating-rod,

z 5 adapted to bear against said terminal device, compound lever mechanism connected with substantially as set forth. said rod adapted to raise and lower the mold,

9. A. lass-press provided with a verticallycounterweig ted lever mechanism'connectecl movab e frame, a plunger connected with with the rod and adapted to raise and lower.

. said frame, positive y-actuated lever mech-' the lunger, interposed frictional connecting 3o. anism provided with a bearing-terminal, and mec anism between said lever mechanism a spring-actuated pressure-lever mounted on and the plunger, and means for actuating the frame provided with a corrugated face. said rod, substantially as set forth. adapted to bear against said terminal, sub- In testimony whereof I afiix my signature stantialllly as set fortlfl, l w in presence of two witnesses.

5 10. a aratus or man acturin ass articles, tli combination of a veriiic illy- CORNELIUS KUHLEWIND' movable mold, a vertically-movable plunger, Witnesses:

a piston-rod and cylinder with inter osed CHAS. S. LEPLEY, mechanism arranged to raise the mol and O. M. CLARKE.

It is hereby certified that in Letters Patent No. 829,530,' granted August 28, 1906, upon the: application" of Cornelius Kuhlewind, of Pittsburg, Pennsylvania, for an improvement in Apparatus for Manufacturing Glass Articles, errors appear requiring correction, as follows: On page 3, line- 117, the words plunger eonuec should read plunger connected, and same page, line 122, the words A glass glass-provided should read A ghss-presa proirided; and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Ol iice. a v

Signed and sealed this 16th day of October, A. 1)., 1906.

, [emu] F. I. ALLEN,

C 'ommi88iqner of Patents.

Corrections in Letters Patent No. 829530.

It is hereby certified that in Letters Patent No. 829,530, granted August 28, 1906, upon the application of Cornelius Kuhlewind, of Pittsburg, Pennsylvania, for an improvement in Apparatus for Manufacturing Glass Articles, errors appear requiring correction, as follows: On page 3, line 117, the words plunger eonnected should read plunger connected, and same page, line 122, the words A glass glass-provided should read A glass-press and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the ease in the Patent Oi iice.

Signed and sealed this 16th day of October, A. 1)., 1906.

[SEAL] F. I. ALLEN,

Commissioner of Patents. 

